217620575

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{2081}}^1$

素因数の和:2227

約数の個数: 24

約数和(自身を含む): 278821440

約数和(自身を除く): 61200865

約数列:

[1, 5, 25, 47, 89, 235, 445, 1175, 2081, 2225, 4183, 10405, 20915, 52025, 97807, 104575, 185209, 489035, 926045, 2445175, 4630225, 8704823, 43524115, 217620575]

約数ペア:

[(1, 217620575), (5, 43524115), (25, 8704823), (47, 4630225), (89, 2445175), (235, 926045), (445, 489035), (1175, 185209), (2081, 104575), (2225, 97807), (4183, 52025), (10405, 20915)]